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What is the run method?
- The method is a set of code which referred to by name and it can be called (invoked) at any point in a program just by utilizing the method's name.
- Think of a method as a subprogram that acts on data and often returns a value. Each method has its own name.
What if we call run() method directly instead start() method?
- To invok run() method on or after the main thread, then the method go onto the present call stack sooner than at the starting of a new call stack.
Sample Code
public class CallRun extends Thread{
public void run(){
System.out.println("Welcome to Wikitechy Tutorials!!!");
}
public static void main(String args[]){
CallRun time1=new CallRun();
time1.run();//fine, but does not start a separate call stack
}
}
click below button to copy the code. By - java tutorial - team
Output
Welcome to Wikitechy Tutorials!!!Sample Code
public class CallRun extends Thread{
public void run(){
for(int i=3;i<6;i++){
try{Thread.sleep(100);}catch(InterruptedException e){System.out.println(e);}
System.out.println(i);
}
}
public static void main(String args[]){
CallRun t1=new CallRun();
CallRun t2=new CallRun();
CallRun t3=new CallRun();
t1.run();
t2.run();
t3.run();
}
} click below button to copy the code. By - java tutorial - team
Output
3
4
5
3
4
5
3
4
5